commemorate something/somebodyto remind people of an important person or event from the past with a special action or object; to exist to remind people of a person or an event from the pastA series of movies will be shown to commemorate the 30th anniversary of his death.A plaque commemorates the battle.Wordfinderanniversary,birthday,celebrate,commemorate,festivity,jubilee,occasion,parade,party,receptionWord Originlate 16th cent.: from Latincommemorat-